Vulnerability in Cisco 1100-4p_integrated_services_router

CVE-2021-1236

Multiple Cisco products are affected by a vulnerability in the Snort application detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. The vulnerability is due to a f…

EPSS: 0.021 (80.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-1236?
CVE-2021-1236 is a medium-severity vulnerability in Cisco 1100-4p_integrated_services_router, classified under Always-Incorrect Control Flow Implementation. CVSS score: 5.3/10. Published 2021-01-13.
How severe is CVE-2021-1236?
Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2021-1236 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.